Muscovite (mica)

$KAl_2AlSi_3O_{10}(OH)_2$

  Family phyllosilicates
  Crystal system monoclinic
  Color colorless, white, silver, yellow
  Streak color white
  Cleavage 1 clivage basal parfait
  Hardness 2 to 2,5
  Density 2,8 to 2,9

Explanations: → Here List of minerals: → Here